Press



Oct. 6, 1925. 1,555,976

L. C. HUFF APPARATUS FOR TREATING OIL Filed April 14, 19215I Oa. 6I 1925. 1,555,977

E. F. HULBERT Pnss Filed De. 15. 1924 Z 4 Sheets-Sheet 2 ,H35 95 l l v.ll |l; I1I um 60 INVENTOR.

Qua/9&4 rm@ Oct. 6, 19'25.

' E. F. HULBERT Pmass Filed Dec. 15. 1924 4 Sheets-Sheet 3 INVENToR.

ugr/W hws-TWA ATTORNEYJ Patented Oct. 6, 1925.

UNITED STATES' .1,555,917 PATENT OFFICE;

EDWIN E. HULBERT, OE MILWAUKEE, WIsCoNsIN, AssIGNOR To THE MASTER PACK- AGE CORPORATION, or OWEN, WISCONSIN, AA CORPORATION or WISCONSIN.

PRESS.

To all whom t may 00m/Cm.'

Be it known that I, EDWIN F. I-IULBERT, a citizen of the United States of America, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Presses, of which the following is a description, reference being had to the accompanying drawings, which are a p art of this specilication.

' The invention relates to presses, and more v particularly to a press for attach-ing the cally with a predetermined seque-nce of 0p-v erations. A

The 1n'vent1on further consists in the sevi eral features hereinafter set forth and more particularly defined by claims at the conclusion hereo In the drawings: Fig. l is a vertical sectional view through apart of the press embodying the invention;

Fig. 2 is a view similar to Fig. 1, showing more particularly the operating mechanism;

Fi 3 is a detail sectional viewV vtaken on the line 3-3 of Fig. 1, parts being broken away;

Fig. 4 is a detail sectional view taken on the line 4 4 of Fig. 1, parts being broken away and parts being shown in section;

Fig. 5 isa detail sectional view taken on the line 5-.5 oflFig. 1;

Fig. 6v is a detail plan View of the feeding table and its driving mechanism; y

Fig. 7 Ais a detail sectional view through one of the hydraulically-operated pistons;

Fig. 8 is an enlarged detail sectional view of press parts shown in Fig. 1, operating' on the container there shown;

Figs. 9 and 10\are views similar .to Fig". 8, showing the press parts operating on other forms of container closures;

,'Fig. 11 is a View similar to Fig. 8, show- Application led'December 15, 1924. Serial No. 755,993. 'I

ing the/.press parts modified to operate on a container cover;

Fig. 12 is a view similar to Fig. 8, showing the press parts formed to produce another form of container closure.

The press includes a base plate 10, uprightframe members 11, a feeding table 12 rotatably mounted on one of theuprights 11, a motor 13 connected through shaft 14 and enclosed reduction gearing to a shaft 15 carrying a pulley 16 connected by'a belt 17 with 'the pulley face of the table 12. l

The motor circuit 18 is connected to the supply circuit 19 through a switch 20 which is normally closed by a spring 21 but adapted to be opened intermittently, as the table rotates, by a rack 22 on the movable member of the switch meshing with a pinion on a shaft 23 secured to a lever 24 which is swung to move the rack to. open the, switch by the engagement of a pin 25 on the rotating table.

and is held in position, to hold the switch l open while the press is operating, by means of a spring-pressed detent 26 under 4the control of the Operator.' Thus, the motor turns the table intermittently from a position A to a pressing station B` to an unloadingstationC and is automatically stopped at these stations through the operation of the lever 24 by the table, and is put into motion through the operation bythe operator on the y detent' 26.

The table is held against movement on' reachin the pressing station by a dog or latch v2 automatically engageable with a locking recess 28A as the table reaches this station and is released by the operator after the pressingoperation and just before the release of the detent 26. As, shown, the

latch 27 has a roller 29 cooperating with a cam 30` on the table to effect its outward movement prior to locking, with a limited sliding movement produced by the sliding movement of a part 31 of the latch in opposition to a spring 32, both of whichv parts are carried on a member 33 slidably mounted in a guide 34 on the base plate, said member 33 being moved to bring the latch tov operative position by springs 35, and `the whole latch assembly being released by the ,operator through the operation of a treadle lever 36 connected by a cable 37 with the member 33.

The table 12 carries a plurality of tubular uprights 38. i Upon each of these uprights an internal expanding chuclg 3Q is mounted. This chuck may be of any suitable construction and one form is shown in Y' detail in Fig. 4, wherein arcuate chuck aws 40 are normally held in contracted position by springs 41 connecting adjacent 'aws, and are moved outwardly by wedge locks 42 which are normally held in contracted position by springs 43 connecting adjacent blocks, the blocks 42 being moved outwardly through the downward movement of a centrally disposed actuator 44 which has wedging vengagement with blocks 42, the wedge surfaces being 45 and 46, respectively,` and the chuck is held in expanded position b engagement of the straight sides 47 o the actuator with the straight j sides 48 of the blocks 42.- The jaws 40 and blocks 42 are slidably mounted between plates 49 and 50 and are guided Aby bolt-,S

actuator or expander. 44 is connected to a.

51 working in slots 52 in the' jaws 40. The

rod 53 that carries rollers 54which'engag`e the surfaces 55 of atwo-part wedgecam 56 l on the base plate 10 as the table 12 moves to its pressing position, the cam 56 being of two parts to allow of the passage of the rod 53. With this construction, while one of the chucks is moving' from the osition A to the position B, the operator1 p aces the 'tubing 57, forming the siding of the container, over-A the chuck andas this chuck reaches the pressing sition the chuck jaws are moved outwar y against the' interior of the I tubing through the operation of the chuck parts effected by the `downward movement [of the actuator`44 and rod 53 cooperating co .clamped in. place as ,it re'aches the pressmg position. g A

An external contracting-chuck 58 is used to engage thetubing durin the .pressing operation. This chuck ma Llie of vany suitable construction and one orm is shown in 'detail in Figs. 1 and 3,- wherein arcuate chuck jaws 58 are slidably mounted on a support 59 adapted to -rest upon ac 60 on the three frame members 11'.

l jaw 58- has`a` wedge surface 61 engageable with acorresponding wedge :surface 62 on a wedge ring 63 and when downward pressure is put upon said rin'gthe-jaws58 move radially inwardly,v into clamping` engagelment with the exterior ofthe tubm -jacent its upper end.' Thejaws 5 ltl'acted by engagementvof a Wed e Surface 64 -on the ring with correspondmg wed e surfaces 65 oir-.ring sections 66 r 57 adare re- Y tive connected Atofeach jaw-58"., The jaws 58 -are mounted t'obe lifted with support 58 vby means of bolts' 59V having theirV shanks secured to said jawsand passing through slots 59" inthe support-59with heads .enl gageable with the.V bottom Vparts of said supportsd the cam 56.r Thus, the 4siding of the 'a tainer is automatically and firmly cylinders 75 and 76 suite 1y 'supported and Thus the siding isheld both linside and outsidel during the pressing operation and the topof the inner chuck forms an anvil upon which the head 67 of the container orcover is placed before the external chuck is applic with the head 67th place and-the chucks- 39 and 58 applied, the head-'isnext clamped down firmly against the chuck 39 4and in Figs. 1 and 8-seats`on a shoulder 57 formed by the siding and then a sheet metal band 68 on the siding is pressed with the siding to 'Y secure the head in place. For thispur.-

pose a pressing plunger comprising a main atv The chuck 58 is carried on. rods 74wl1'iclf1lf.'

are fast to the ring 63 and slidably mounted 5,

for limited movement relative to. the chuck jaws 58 and the sup rt 59, the extent of thismovement bein sition of stop nuts 4. Thus, on the A art of theupward movement of-saidrods 74 the wedge ring 63 bearsagainst the rin sections 66 to cause a release of the chuc ws 58 froml the work, -the su port 59 ing then held Idown by itsown'weight, and

thereafter upn a Vfurther movement of 'said rods the supportv 59 is engaged by the nuts- -64 and' lifted withA the rest of the' chuck parts 4to an elevated position so '.that the operator may put vthe Vhead 67 of the con tainer -in place within the pressing operation.` Both the operating means 58 and the plunger are preferably hydraulic and so arranged that the chuck 5 8 is'applied before the plunger `starts its pressing p operation. For this pur there are two' the siding prior to 10,

for the chuck Y etermined bythe l t having pistons 77 and 78 operating therein, i I

The piston 77 is connected by the piston 'n plunger 69` and the,

12o. rods" A82 oo nl, 'l

rod 79 with the mainl piston 78 is connected y to a oros-head 81 ca' nected by a ring 83with 74.' Y A motor-drivenol pump 8 5...urnishes a piston rod 80V nsm 86 of known LAand. under 'am motive fluid :for thesystemndi mecha-*ir* the control of'an operating Vlever87 l'egll-Y I lates the output of the pump.` Y.

The pump here shown- -to either of awa pipes. sanar-89: The pipe 7 of-a which oil under` pressure may. lie-supplied 1'.

`\88 connects direct with the upper end of and 76.

the cylinder 76 and the pipe 89 direct with the lower end of said cylinder. A branch pipe 90 connects the pipe 88 with the upper end of the cylinder 75 'and a branch pipe 91 connects the pipe 89 with the lower end of the cylinder 75. An air and waste oil pipe 92 leading to the sump of the pump has branch pipes 93 and 94 connected respective-l ly with the upper ends of the cylinders 7 5 A timing valve mechanism 95 is'located in each of the branch pipes 90 and 91.k In

each instance this comprises a two-part cyl- -inder 96, 'a valve 97 slidably mounted there.-

in and acted upon by a spring 98 to oppose -lits movement and controlling passage of fluid from the upper part of said cylinder through passages 100', and a. '.check valve 99 seating in a. passage 100 in said valvel 97 to permit return of fluid on the reverse movement of the actuating piston. Y With the hydraulic mechanism above de scribed, when oil under pressure is admitted to the pipe 88, it passes therefrom into the upper part of the cylinder 76 and vinto the upper part of the valve cylinder 96. `As the resistance to pressure by the piste-1178 and v. 7 its vassociated parts is less than that lpro- 30 duced by the` spring 98 against the valve 97, the piston 78 moves downwardly and thereby causes an operation of the external expanding chuck, as previously described. Thereafter, when the Ychuck 58 has been set, further movement of the piston 78 is arf rested and then the total pressure of the oil in'the line '88 acts upon the valve 97, and moves it downwardly against the action i ,ofV the spring 98 and oil then flows through the passage 100 between the valve and the cylinder 96, to the pipe 90 and the upper end of the 'cylinder' 75 and acts on the piston 77 'to move it downwardly and cause the plunger to operate in the manner ypreviously described to perform the pressing operation.-V For the return movement of the' pistons the oil under pressure is admitted to 'pipe 89 and passes therefrom. into the lower yend of the cylinder 76 and `into the upper part of the valve cylinder associated with the pipe 91 and operates in a manner identical with the timing valve in pipe 90 to lfirst permit the piston 78 to m''i''e upwardly and thereby release the external chuck 58 and then allowv oil to pass into the lower part of the cylinder 75 and move the piston 77, and hence the plunger 6 9, upwardly to an inoperative position and lso that the work may then be turnedvto the unloading position C'.

It is important that air be prevented from y becoming trapped in the4 cylinders 76 and 75 on opposite sides of the piston, and tov avoid this I have provided airjbl'eed pipesr llcommunicating'with the upper ends ofeach cylinder and associated-with a .small they offer great resistance to the passage of oil through them. Hence during the movement of the pistons any air that may' be trapped in the hydraulic cylinders is forced out into thel pipes 93 and...94'into the pipe 92 and into the sump lof the pump with such waste oil as may be forced out through said pipes 101'with the air.

In Figs. 9 to 12, inclusive, I show the operation of the press upon various closures. In Fig. 9 the band 68 and a part 102 of the siding are pressed down into clamping engagem'ent with a head formed of two parts 103 and 104 which are secured together and to an inwardly-extending flange 105 of the siding 102, by suitable adhesive, and pressed between the chuck 39 and plunger 70 before the forming tool 73 comes into operation. In Fig. 10 the metal band 106 is pfovided with a cover seating flange 107 and the dished part 108-of the laminated.

edge 114 ofthe siding against saidsiding,

the forming tool 73" in'this case working in a recess 115 formed in the blocks of the external' chuck', said recess having a curved lower -end 116. In Fig. 12, to form the v cover of the ail, a metal band 117 which forms the'sidring of the cover isf clamped between the internal chuck 39 and the external chuck 58 and has an inwardly-extending flange 118 upon which the cover 119 is seated,` and the tool 73 acts to roll, by a ldirect pressing action, the upper edge 120 of said 4band into clamping engagement with said cover. Where the siding has 'beadi 12.1, the face of the chuck plates are recessed, as at 122, to accommodate this From the foregoing it wi'llbe noted that fthe chucksgrip thev4 siding'fwhether of one ormore parts between them, and that while the head is firmly clamped down a part or.

partsof the siding are turned by direct longitudinal pressure into` a bead to secure the i head to the siding.

Aro

thereon to enga-ge the siding to be headed,

'afiixng position. v l

4. In a press-of the character described,

I desire it to be understood that this invention is not to be limited to any particular form or arrangement of parts except in so far assuch limitations are included in the-claims or necessitated by the prior art.

What lI claim as'my invention is:

1. In a press of the character described, the combination of an internal holder for the siding to be headed, anexternal clampmeans for the siding, a' plunger having in j a Iiead-clamping part and a forming part movable relative to said head-clamping f part, means for operating said plunger to move said head-clam ing part to clamp the head between it an said internal holderand thereafter move said forming part to its work, and means for operating said external clamping means before said plunger comes into operation.

2. In a vpress of the character described, means for holding the sidin to4 be headed both internally and externa y, means for clamping the head in position, and means lfor pressing the siding into position .to attach the head to said` siding.

3. In 'a press of the character described, the combination of a movable su port having an internal expanding chuc mounted thereon to engage the siding to be headed, y chuck-actuating. means operated by the movement of said support as it comes to a pressingposition, an externall contracting chuck engageable with said siding when in a pressingposition, and a pressing 'plunger movable to clamp the headin position and press a part of said siding into a headthe combination of a rotary feed table havmg an i'nternal expanding chuck mounted f chuck-actuating means operatedy by the movement of said table as it turns to a pressing position, meansv for locking said table in pressing position, an external contracting vchuck engageable withs'aid siding when in a pressing position, and a pressing plunger movable to clamp said head in po; sition and press the siding to ahead-aiiixing position. I

In a press of .the character described, the combination of an internal holder for the siding to be headed, a head-attaching plunger, an externalcontracting chuck engageable with the siding, of a pair of hy draulically-operated pistons associated respectively w1th said plunger and external e supply of pressure fluid to the pistonoperatin plunger until the piston of the `external c uck has been operated 'and then.

operable through thev increase of pressure occasioned thereby'to connect the' supply of pressure fluid for actuating the plungeroperating piston.

7. In a press of the character describedfA the combination 4of means for clamping the siding in position to receive a head, of head-v .attaching means including a plunger'having a head-clamping portion and an annular crim ing portion, said'head-clamping portion eing yieldably mounted 'to move relative to sald crimping portion.

8. In a press of the character described, the combination of means for clamping the siding in position to receive a head including an external contracting chuck, of headattaching `means including a plunger having a head-clamping portion and an annular crim ing portion guided in said external chuc said chuck cooperating with said crimping portion of the plunger to form an enclosed space in which part rof the siding is crimped to a head-afiixmg position.

9. In a press of the character described,

the combination of means for clamping the sidin and its band in position to receive the ead, of head-clamping means, and means to crimp a part of said siding and band together to afhx the head. .A

10. In a press of the character described,

the combination of a support having an internal expanding chuck engageable with the 1sidin an external contractingl chuck engagea le with the siding, means. for raisin and lowering said last-named chuck, sai

last-named Imeans also serving to apply and release saidl external contracting chuck, and means for clamping the head in position and thereafter acting on a part of said siding to aflix 'thehead thereto.

11. In a press of the character described,

the combination of an internal holder for the siding, an external contracting Jchuck engageable with the siding, a head-attaching plunger', a pair of hydraulic cylinders,

pistons operating in 'said .cylinders andl perativelv connected respectivelfy to said chuck andplunger, a. source. o pressure fluid, piping conductigigsaidpressure fluid chuck, a supply ofpressure fluid, and means t0 Said CyhlldeIS t0 `a0t11ate Said Pistons,

for ,causing the pressure- Huid to opera-tey the actuating piston of the external holder in advance of the piston forsaid plunger.

6.. In a press of the. character'described,

the combination of 'an internal holder for the siding to be headed, 'a head-attaching plunger', an external contractingA chuck envciated with said piping connected to saidv chuc vance ofthe plunger.

In -testimony whereof, I afiix my signature.

EDWIN F. HULBERT. 

